JP2008190193A - Lock device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lock device which can reduce manufacturing costs by using a drive unit excellent in versatility, and which has proper assembling workability. <P>SOLUTION: A power unit 5, which extracts power of an actuator 2, housed in a unit case 1, from a rotating output shaft 4 integrally provided with an antirotation portion 3, and a dead bolt 6, which is driven for locking/unlocking by the rotation of the rotating output shaft 4, are housed in a lock case 7. The rotating output shaft 4 is supported in such a manner as to freely run idle around a fixed shaft 8, the one end of which is fixed to the unit case 1, and which is inserted into the power unit 1; and the other end of the fixed shaft 8 is fixed to the lock case 7. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a locking device.

  As a lock device in which a drive unit using an actuator is previously unitized, a device described in Patent Document 1 is known. In this conventional example, the lock device is configured to advance and retract a dead bolt accommodated in a lock case by a drive control unit (power unit). The power unit is formed by accommodating a power transmission mechanism such as an actuator and a gear train and a printed mounting board in a flat container, and a switch drive plate as a power output unit is pulled out from the flat container.

  The electric lock is assembled by connecting the switch drive plate of the power unit to a dharma previously arranged in the lock case. When the power unit is started in the assembled state, the dharma is rotated by the straight operation force of the switch drive plate. The dead bolt connected to the dharma is driven back and forth.

  However, the above-described conventional example has a drawback that the driving force generated in the power unit is taken out as the reciprocating driving force of the switch driving plate, so that the driving unit lacks versatility, resulting in an increase in manufacturing cost.

  That is, in the above conventional example, the projecting direction, the projecting distance, the reciprocating stroke, etc. of the switch drive plate from the lock case are all determined by the drive unit. It can be used only when the stroke or the like matches these, and if any of them is different, a new drive unit needs to be set.

In order to solve this problem, as described in Patent Document 2, it is effective to use the output of the power unit as a rotational output. However, in the conventional example described in Patent Document 2, the power unit Since it is necessary to attach the clutch gear or the like to the lock case after attaching, the assembly workability is poor.
Japanese Patent Laying-Open No. 2005-282302 JP 2006-193990 A

  The present invention has been made in order to eliminate the above-mentioned drawbacks, and by using a drive unit having excellent versatility, it is possible to reduce the manufacturing cost and to improve the assembly workability. The purpose is to provide.

  The locking / unlocking drive of the dead bolt 6 accommodated in the lock case 7 is performed by transmitting the locking / unlocking operation power from the power unit 5 accommodating the actuator 2 and the like in the unit case 1 to the dead bolt 6 by an appropriate means. .

  In the present invention in which the output of the power unit 5 is a rotation operation, even if the positional relationship between the rotation output shaft 4 of the power unit 5 and the dead bolt 6 is different, the dead bolt is utilized using the rack member 16 or an appropriate gear train. Since the power can be transmitted to the operation unit 6, the same power unit 5 can be shared by multiple models.

  In addition, the assembly of the drive portion of the dead bolt 6 is completed simply by connecting the rotary output shaft 4 and the dead bolt 6 by an appropriate means after the power unit 5 is fixed to the lock case 7. improves.

  Further, when the rotation output shaft 4 is disposed in the power unit 5, it is necessary to support both ends by, for example, supporting both ends of the rotation output shaft 4 with opposing walls of the unit case 1. The idling rotary shaft supported in a cantilever shape is likely to be inclined, and when a gear or the like is used in the subsequent stage, power transmission efficiency is reduced due to poor meshing.

  In order to solve this problem, it is possible to expose the rotation output shaft 4 to the outside of the unit case 1 to enable connection of the relay gear 11 and the like, and to support both ends of the unit case 1 in this case. It is necessary to form the rotation output shaft 4 as a shaft member that can idle with respect to the unit case 1, and it is necessary to separately fix the rotation preventing portion 3 with respect to the relay gear 11 and the like, resulting in an increase in the number of parts.

  In the present invention in which the rotation output shaft 4 is idled around the fixed shaft 8 and one end of the fixed shaft 8 is fixed to the lock case 7, the above-mentioned problem can be prevented from occurring without causing the rotation of the rotation output shaft 4.

  According to the present invention, by using a power unit having excellent versatility, the manufacturing cost can be reduced and the assembly workability can be improved.

  As shown in FIGS. 1 and 2, the lock device is formed by accommodating a dead bolt 6 driven by a power unit 5 in a lock case 7 and is used by being fixed to a door body.

  As shown in FIG. 4, the lock case 7 is formed in a hollow box shape by closing the upper opening of the lower case 7 </ b> A that rises up around four sides by the upper case 7 </ b> B, and the mounting plate 7 a is fixed to the front end surface. The The mounting plate 7a provides a fixing flange to the door body when being inserted and fixed in the door body, and after being fixed to the door body, is covered with the decorative plate 7b.

  As shown in FIG. 2, the power generated in the power unit 5 is output to the rotation output shaft 4 to rotate the relay gear 11 connected to the rotation output shaft 4. The rotation of the relay gear 11 is transmitted to the dead drive cam 13 via the rack member 16.

  As shown in FIGS. 2 and 3, the dead drive cam 13 includes an input gear 12 and a dead operation arm 13 a, and is rotationally driven between approximately 90 ° locking / unlocking rotation positions with the locking / unlocking operation of the power unit 5. When the dead drive cam 13 is rotationally driven to the locking rotation position side, the dead operation arm 13a pushes the locking driven portion 6a formed on the dead bolt 6 forward, and the tip of the dead bolt 6 jumps forward. Move to the locked position (see FIG. 3). Further, when the dead drive cam 13 is rotationally driven to the unlocking rotation position side from this state, the dead operation arm 13a pushes the unlocking driven portion 6b of the dead bolt 6 backward, and the dead bolt 6 is inserted into FIG. Move to the unlocking position shown in.

  Further, as shown in FIG. 1B, in order to drive the dead bolt 6 by the manual operation unit 17 such as the cylinder lock 17A or the thumb turn device 17B fixed to the door body, the rotation center part of the dead drive cam 13 is used. Is formed with a connecting hole 13b for fitting a rotary shaft member 17a such as a cylinder lock 17A.

  A link rod 18 is connected to the dead drive cam 13, and one end portion of the link rod 18 penetrates a column 19 erected on the lock case 7 so as to be freely slidable from the side. The link rod 18 is wound with a compression spring 20 pressed at one end on a support column 19 and at the other end on a stopper flange 18a formed on the link rod 18, and the dead drive cam 13 is locked or unlocked by either stroke. Stop moderation at the end position.

  As shown in FIG. 6, the rack member 16 has an input formed in a plate shape with a metal material at the other end of a synthetic resin rack body 16a in which a relay gear side rack 15 meshed with the relay gear 11 is formed at one end. The gear side rack 14 is fixed and formed. The relay gear 11 is mounted on the rack slide surface 1a formed by lowering a part of the outer peripheral wall surface of the power unit 5 so that the outer periphery is exposed, and the relay gear side rack 15 is connected to the rack slide surface 1a and the upper case 7B. It is formed in a thickness that can be accommodated in a stacking space formed in the gap between the wall surfaces.

  A rib 21 for reducing sliding resistance is formed in a sliding contact portion of the rack body 16a with the rack slide surface 1a, and a rack that supports the back surface of the relay gear side rack 15 on the rack slide surface 1a. A guide 1b is formed.

  The rack body 16a is movable over the entire length with the inner wall surface of the upper case 7B as a sliding surface, and the sliding contact portion with the upper case 7B of the relay gear side rack 15 and the opposite end of the rack body 16a Ribs 21 are formed in sliding contact with the inner wall surface of the case 7B.

  In order to improve the sitting of the rack member 16 around the movement direction line to prevent the rack member 16 from falling in this direction and to prevent the occurrence of poor meshing, the rib 21 has the full width of the rack body 16a, that is, the movement of the rack member 16. It is formed over the entire length in the direction orthogonal to the direction. Further, in order to prevent the rolling in the above direction, the rack guide 1b is formed at a height that substantially matches the overall height of the relay gear side rack 15, thereby increasing the bearing size.

  The rack member 16 is guided in the direction of movement of the input gear side rack 14 by a guide column 7c erected on the lock case 7, and is supported by a rack support portion 7d formed at the base end of the guide column 7c. . The guide strut uses a peripheral wall of a screw insertion member for connecting the upper and lower cases 7A and 7B, and a rack support portion 7d is formed by externally fitting a freely rotatable ring to the insertion member.

  As shown in FIG. 5, a synthetic resin guide member 22 is fixed to the lock case 7 in order to smoothly slide the dead bolt 6 and prevent the generation of abnormal noise during operation. The guide member 22 is formed in a rectangular cylindrical shape by being paired with substantially the same shape as that shown in the figure, and surrounds the entire side wall of the dead bolt 6. However, only one guide member 22 is shown in FIG.

  Furthermore, the stopper lever 23 is connected to the lock case 7 so as to be swingable around the support shaft. The stopper lever 23 has a cylindrical dead stopper 23a at the tip, and is biased counterclockwise in FIG. 5 by a torsion spring (not shown). The stopper lever 23 is pushed up to the upper stroke end position by interfering with the dead operation arm 13a while the dead drive cam 13 moves from the locking rotation position to the unlocking rotation position.

  The dead bolt 6 is formed by bending a thick steel plate into a U shape. The dead bolt 6 is fitted to the guide member 22 so as to be freely slidable in the longitudinal direction with the open cross section facing downward, and a stopper step portion 6c is formed at the upper end of the rear portion. As shown in FIG. 3, when the dead bolt 6 is in the locking position, the stopper step 6c is locked by the dead stopper 23a and restricts the movement of the dead bolt 6 toward the unlocking position.

  As described above, the dead stopper 23a is driven to the upper stroke end side prior to the initial rotation of the dead drive cam 13 toward the unlocking rotation position, that is, prior to the movement of the dead bolt 6 toward the unlocking position. The locking with the stepped portion 6c is released, and the movement of the dead bolt 6 to the unlocking position side is allowed.

  A sickle member 24 is pivotally supported on the dead bolt 6 so as to be swingable around a support shaft 24a. As shown in FIG. 1, the sickle member 24 includes a locking claw 24b and an operating projection 24c at the front and rear ends. When the dead bolt 6 is in the unlocked position, the sickle member 24 is engaged with the strike 25 of the locking claw 24b during the locking operation by storing the locking claw 24b in the dead bolt 6 as shown in FIG. Take the retracted position to prevent collision. This retracted posture is maintained by the operating protrusion climbing on the interference portion 22a formed on the guide member 22. When the dead bolt 6 moves to the locking position side from this state, as shown in FIG. The operating protrusion 24 c abuts on the sickle operating protrusion 22 b formed on the guide member 22, and applies a rotational force to the sickle member 24 counterclockwise.

  As shown in FIG. 1, due to the rotation of the sickle member 24, the locking claw 24b of the sickle member 24 protrudes from the lower end edge of the dead bolt 6, and thereafter the strike 25 is in the dead bolt 6 detaching direction, that is, the left side in FIG. Is moved to the peripheral wall of the locking hole 25a, and movement in this direction is restricted.

  Details of the power unit 5 are shown in FIG. The power unit 5 has a unit case 1 formed by connecting the upper unit case 1B having the rack slide surface 1a to the lower unit case 1A, and a motor as an actuator 2 and a motor in the unit case 1 A gear train for converting the power of 2 into the rotational power of the rotary output shaft 4 is accommodated. The gear train is configured to transmit the rotation of the worm 26 fixed to the rotation shaft of the motor 2 in the order of the worm wheel 27, the first gear 28, the second gear 29, the final gear 9, and the rotation output shaft 4. Is done. In order to supply power to the motor 2 or input / output a control signal, a lead wire 30 is drawn into the unit case 1.

  As shown in FIG. 7A, the final gear 9 is mounted in a posture in which the flat plate portion 9 a is sandwiched between the lower unit case 1 </ b> A and the printed board 31. The printed circuit board 31 is provided with a shaft insertion hole 31a into which a cylindrical shaft portion 4a of the rotation output shaft 4 to be described later is inserted, and a shaft portion 9b protruding from the final gear 9 is fitted into the lower unit case 1A. And a shaft fixing projection 1d that protrudes from the center of the bearing recess 1c and that is fitted with a through-shaped shaft through hole 9c formed in the shaft 9b of the final gear 9 is formed.

  As shown in FIGS. 9 and 10, the final gear 9 is formed by projecting the shaft portion 9b on the back surface of the flat plate portion 9a, and the clutch portion (connecting portion 10) is formed on the surface opposite to the surface on which the shaft portion 9b is formed. A clutch slider 32 is mounted. A pair of clutch sliders 32 in which the same shape is reversed is used, and an angle restricting projection 32b is projected from the center of the flange 32a and formed into a T shape. The clutch slider 32 has a slide protrusion 32c protruding from the back surface of the angle restricting protrusion 32b and a spring receiving rod 32d protruding from the flange 32a. The slide protrusion 32c is the slider receiving length of the last gear 9. It is slidably inserted into the hole 9d.

  In the mounted state, the spring receiving rods 32d can penetrate through the through holes 32e of the other clutch sliders 32 and can move away from each other. As shown in FIG. 10, a compression spring 33 is interposed between the spring receiving rods 32e, and the clutch sliders 32 are urged away from each other.

  Further, a brush-like conductor portion 34 is fixed to the flat plate portion 9 a on the side facing the printed circuit board 31 of the final gear 9. The conductor part 34 is formed of a metal material having good conductivity, and as shown in FIG. 10D, a hemispherical contact 34b is formed at the free end of the contact leg 34a.

  The final gear 9 is driven to reciprocate between the initial rotation position and one of the locking and unlocking positions by one unlocking operation. For example, in the case of the unlocking operation, the final gear 9 is once unlocked from the initial rotation position as a base point. After being driven to the rotational position, it is reversely driven again to return to the initial rotational position.

  As shown in FIG. 11A, in order to detect the rotational position of these final gears 9, a ground pattern 35 and a rotational position detection pattern 36 are formed on the printed circuit board 31 concentrically with the shaft insertion hole 31a. Is done. As shown in FIG. 11B, when the final gear 9 is in the initial rotation position, the contact 34b is in contact with both the ground pattern 35 and the rotation position detection pattern 36. The rotation position detection pattern 36 is at the ground potential. From this state, when the final gear 9 moves to the unlocking operation position shown in FIG. 11C or the locking operation position shown in FIG. The position detection pattern 36 changes to a drive potential.

  The potential change of the rotational position detection pattern 36 is notified to the controller (not shown) on the printed board 31 via a pattern wiring (not shown) formed on the printed board 31 or via the connector and the lead wire 30. It is used as a motor drive control confirmation signal.

  As shown in FIGS. 7B and 15, one end of the lower unit case 1 </ b> A is fixed to the shaft fixing protrusion 1 d and a fixed shaft 8 is erected, and the rotation output shaft 4 is rotated around the fixed shaft 8. Is mounted so that it can rotate freely. As shown in FIG. 12, the rotation output shaft 4 has a cylindrical shaft portion 4a on one surface of the flat plate portion 4b, and the cylindrical shaft portion 4a is inserted through the shaft insertion hole 31a of the printed circuit board 31 and attached. Is done.

  A conductor portion 37 is formed on the flat plate portion 4 b of the rotation output shaft 4 so as to face the printed circuit board 31. The conductor portion 37 is formed of a thin plate material having good conductivity, and is provided with a hemispherical contact point 37b at the free end of the contact leg 37a, similar to that used for the last stage gear 9 described above.

  Further, a clutch recess 38 that forms the connecting portion 10 together with the clutch slider 32 described above is formed in the cylindrical shaft portion 4 a of the rotation output shaft 4. Corresponding to the fact that the final gear 9 has the two angle restricting protrusions 32b in the backward position, the clutch recess 38 is formed at two symmetrical positions across the rotation center of the rotation output shaft 4. As shown in FIG. 12 (c), each clutch recess 38 has a first arc surface 38 a centering on the rotation center of the rotation output shaft 4 and an angle restricting wall 39 as a boundary. In a state where the projection 32b is in sliding contact with the first arc surface 38a, the projection 32b can rotate within a range corresponding to an angle θ (90 ° in this embodiment) whose rotation range is regulated by the angle regulating wall 39. .

  A second clutch recess 40 is formed adjacent to the clutch recess 38 with the angle regulating wall 39 as a boundary. The second clutch recess 40 has a second arcuate surface 40a having a smaller diameter than the angle restricting wall 39 and the first arcuate surface 38a as a boundary, and the clutch slider 32 has a small rotation locus diameter of the angle restricting projection 32b. Only in the second clutch recess 40 can be rotated.

  The operation of the connecting portion 10 will be described with reference to FIG. First, FIG. 13A shows a case where the final gear 9 is in the neutral position and the rotation output shaft 4 is in the unlocked state. When the motor 2 is locked and driven from this state, the final gear 9 rotates 90 ° counterclockwise and shifts to the state shown in FIG. Under the above conditions, the angle regulation protrusion 32b is in a state in which the wall in the counterclockwise direction is in contact with the angle regulation wall 39, so that the rotation output shaft 4 follows the rotation of the final gear 9 and counters. It rotates 90 ° clockwise and moves to the locked position shown in FIG.

  As described above, the last gear 9 rotates 90 ° counterclockwise and then rotates again in the opposite direction, that is, clockwise, to return to the neutral position. This state is the end of the locking operation, and this state is shown in FIG. When unlocked again from the locked state, the final gear 9 rotates clockwise with the rotation output shaft 4 from the state of FIG. 13 (c), transitions to the state of FIG. 13 (d), Only the final gear 9 returns to the neutral position, and the unlocked state shown in FIG.

  Further, for example, when the locking operation is performed using the manual operation unit 17 in the unlocked state of FIG. 13A, the rotation operation force from the manual operation unit 17 is input to the rotation output shaft 4, and the rotation output shaft 4 rotates counterclockwise which is rotation in the locking direction. As shown in FIG. 13 (a), the rotation output shaft 4 is provided with a play angle counterclockwise by an angle that matches the drive angle (90 °) when the final gear 9 is locked and unlocked. As a result, the locking and unlocking operation can be performed without resistance from the gear train.

  Furthermore, for example, when the motor 2 is stopped during the unlocking drive by the motor 2 from the locked state shown in FIG. 13C and the state shown in FIG. To return to the state, since there is a play angle in the locking direction, it is sufficient to rotate the rotation output shaft 4 clockwise.

  On the other hand, when the rotation output shaft 4 is forcibly rotated counterclockwise, the tip of the angle restricting projection 32b receives a component force directed inward from the angle restricting wall 39. When the operating torque reaches a predetermined value and the component force exceeds the reaction force of the compression spring 33, the clutch slider 32 moves toward the center against the reaction force of the compression spring 33. As a result, the result shown in FIG. As shown, the angle restricting protrusion 32 b enters the second clutch recess 40 beyond the angle restricting wall 39. In this state, the rotation output shaft 4 can idle with respect to the final stage gear 9 which cannot be rotated by the gear train, and can be rotated to a desired locking position.

  As shown in FIG. 14, a ground pattern 35 and a rotational position detection pattern 36 for detecting the rotational position of the rotational output shaft 4 are formed on the printed circuit board 31. These patterns 35, 36 are formed on the surface directly opposite to the conductor portion forming surface of the rotation output shaft 4, that is, the surface opposite to the surface on which the rotation position detection pattern 36 of the final gear 9 is formed.

  The rotational position detection pattern 36 includes an unlock detection pattern 36A and a lock detection pattern. In FIG. 14A, the lock detection pattern 36B, the unlock detection pattern 36A, and the lock detection are clockwise from the long ground pattern 35. The pattern 36B and the unlock detection pattern 36A are arranged in this order.

  Therefore, in this embodiment, as shown in FIG. 14 (b), when the rotary output shaft 4 is in the unlocked position, the unlock detection pattern 36A is short-circuited to the ground pattern 35, and the locking shown in FIG. 14 (c). At the position, the lock detection pattern 36B and the ground pattern 35 are short-circuited. When a potential change due to a short circuit with the ground pattern 35 is detected by a control unit (not shown), it is possible to know the completion of locking and unlocking.

  Using this, the lock control unit drives the motor 2 in either direction of locking / unlocking and waits for detection of an output change from the locking / unlocking detection pattern 36A. When an output change is detected, a drive command in the reverse direction is output to the motor 2, and when the rotational position detection pattern 36 corresponding to the final gear 9 detects the return to the neutral position of the final gear 9, the motor 2 is driven. Stop.

  As shown in FIG. 8, the power unit 5 is formed by fixing the upper unit case 1 </ b> B to the lower unit case 1 </ b> A equipped with the rotation output shaft 4 and the like, and is assembled in the lock case 7. As shown in FIG. 15, the fixed shaft 8 erected in the power unit 5 in the state of being incorporated in the lock case 7 projects upward through the rotation output shaft 4 and is fixed to the upper case 7B.

  By fixing the fixed shaft 8 in the power unit 5 to the lock case 7, the rotation output shaft 4 and the like can be prevented from tilting and the operation can be made smooth, and the dead drive cam 13, etc. It is possible to accurately determine the positional relationship with the component positioned on the surface.

It is a figure which shows this invention, (a) is a side view which shows a locking state, (b) is a 1B direction arrow directional view of (a). It is a figure which shows the inside of a locking device. It is a figure which shows the inside of the locking device at the time of locking. It is a figure which shows the assembly of a locking device, (a) is a figure which shows the state which fixes an upper case to an upper case, (b) is a figure which shows the state which fixes an attachment plate and a decorative plate to a lock case. It is a figure which shows a dead drive cam, (a) is a figure which shows the state which locked the dead bolt, (b) is a figure which shows the state in the middle of unlocking operation of a dead bolt. It is a figure which shows a rack member, (a) is a disassembled perspective view, (b) is a perspective view after assembly, (c) is a figure which shows a mounting state, (d) is a 6D direction arrow of the rack member in (c). FIG. It is a figure which shows the assembly process of a power unit. It is a perspective view which shows the procedure which fixes an upper unit case to a lower unit case and completes a power unit. It is a figure which shows the last stage gear, (a) is a figure which shows an assembly method, (b) is a 9B direction arrow directional view of a clutch slider. It is a figure which shows the last stage gear, (a) is a top view, (b) is the 10B-10B sectional view taken on the line of (a), (c) is the 10C-10C sectional view taken on the line (a), (d) is a contact It is an enlarged view which shows a protrusion. It is a figure which shows a printed circuit board, (a) is explanatory drawing which showed the pattern of the back surface with the continuous line, (b) is explanatory drawing which shows the relationship between the brush and pattern in a neutral position, (c) (d) is other than neutral position It is explanatory drawing which shows the relationship between the brush and pattern in a rotation position. It is a figure which shows a rotation output shaft, (a) is a top view, (b) is the 12B-12B sectional view taken on the line of (a), (c) is a 12C direction arrow view of (b). It is a figure which shows operation | movement of a clutch part. It is a figure which shows a printed circuit board, (a) is explanatory drawing which showed the pattern of the surface with the continuous line, (b) is explanatory drawing which shows the relationship between the conductor part and pattern in an unlocking position, (c) is the rotation position of a locking position It is explanatory drawing which shows the relationship between the conductor part in and a pattern. It is the 15A-15A sectional view taken on the line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Unit case 2 Actuator 3 Anti-rotation part 4 Rotation output shaft 5 Power unit 6 Dead bolt 7 Lock case 8 Fixed shaft 9 Final gear 10 Connection part 11 Relay gear 12 Input gear 13 Dead drive cam 14 Input gear side rack 15 Relay gear Side rack 16 Rack member

Claims (4)

A power unit for taking out the power of the actuator accommodated in the unit case from a rotation output shaft integrally provided with a rotation prevention part;
A dead bolt that is locked and unlocked by rotation of the rotation output shaft is housed in a lock case.
The rotary output shaft is supported so as to be freely rotatable around a fixed shaft that is fixed at one end to the unit case and is inserted through the power unit.
A lock device in which the other end of the fixed shaft is fixed to a lock case. A gear train for transmitting the power of the actuator is housed in the power unit,
The locking device according to claim 1, wherein the rotation output shaft includes a connecting portion connected to a final gear of a gear train in the unit case. The unit case is disposed with the protruding side wall surface of the rotary output shaft approaching the wall surface of the lock case,
The rotation output shaft protruding side wall surface of the unit case has a low profile around the rotation output shaft and is connected to the rotation output shaft. The transmission is engaged with the relay gear to transmit the locking / unlocking operation power to the dead bolt. The locking device according to claim 1 or 2, wherein a stacking space for members is formed. A dead drive cam that translates the dead bolt into the unlocking position by inputting rotational operation power to the input gear;
The lock device according to claim 3, further comprising: an input gear side rack that meshes with the input gear at one end and a rack member that meshes with the relay gear at the other end and includes a relay gear side rack that is accommodated in the stacking space. .

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